// Copyright 2004-2010 Castle Project - http://www.castleproject.org/
// 
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
//     http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

namespace Fas.Tem.Runtime.Parser.Node
{
    using System.Reflection;

    /// <summary>
    /// Abstract class that is used to execute an arbitrary
    /// method that is in introspected. This is the superclass
    /// for the GetExecutor and PropertyExecutor.
    /// </summary>
    public abstract class AbstractExecutor
    {
        protected internal IRuntimeLogger runtimeLogger = null;

        /// <summary>
        /// Method to be executed.
        /// </summary>
        protected internal MethodInfo method = null;

        protected internal PropertyInfo property = null;

        /// <summary>
        /// Value (probably from enum).
        /// </summary>
        protected internal object value;

        /// <summary>
        /// Execute method against context.
        /// </summary>
        public abstract object Execute(object o);

        public bool IsAlive => (method != null || property != null || value != null);

        public MethodInfo Method => method;

        public PropertyInfo Property => property;

        public object Value => value;
    }
}